Gas-regulating bunsen burner.



PATENTBD FEB. 6, 1906.

C. E. WIRTH. GAS REGULATING BUNSBN BURNER.

APPLIUATION FILED AUG. 5, 1905.

UNITED `STATES PATENT OFFICE.

(JHARLESl E. WIRTH, OF WATERBURY, CONNECTICUT. ASSIGNOR TO THE PLUME AND.ATWOOD MANUFACTURING COMPANY, OF WATERBURY, CONNECTICUT, A CORPORATIONOF CONNECTICUT.

.GAS-REGULATING BUNSEN BURNER..

Patented Feb. 6, 1906.

.To all whom it may concern:

Be it known that I, CHARLES E. WIRTI-I, a citizen of the United States,residing at Waterbury, in the county of New Haven and State ofConnecticut, have invented an Improvement in Gas-Regulating BunsenBurners, of which the following is a specification.

My invention relates to a gasregulating valve device for the Bunsenburners of incandescing mantles with the object of providing a deviceacting in the axial center of the burner to regulate the flow of gasthrough a centrally-placed hole, it requiring an appreciable extent ofturning movement of the burner to entirely close 0H or open up thegas-passage. In the device of my 'invention I provide a member revolubleabout the nipple to be secured upon the gas-pipe. The top of therevoluble member has a central hole and the upper end of the nipple anelongated perforation, and between and at its ends passing into theseparts isa valve positioned by the nipple and raised and lowered by meansemployed in connection with the revoluble member and returned to placeby a spring. In its initial position this valve leaves the opening inthe revoluble member free for the discharge of the maximum supply of gasto the burner, while in its elevated position and according to the sizeof the valve the opening may be entirely closed or only` opened for aminimum flow of gas, and Vbetween these positions the valve may beplaced to re ulate the flow of gas as desired by turning t e revolublemember and raising` or lowering the valve.

In the drawings, Figure 1 is a vertical central section through myimproved gas-regulating Bunsen burner and an elevation of the valve inits lowermost position. Fig. 2 is a vertical section and partialelevation of the operative parts of the device, showing the valve in itselevated position. Fig. 3 is a partial vertical section and elevation atthe upper end of the nipple and sleeve portion of the revoluble memberat right angles to the position Fig. 1, with an edge view of the valvein elevation. Fig. 4 is a plan of the parts shown in Fig. 3. Fig. 5 is avertical section and partial elevation showing a form or modification ofmy invention, and Fig. 6 is a sectional plan at about the dotted lineacA w of Fig. 5 with the parts in a position at right angles thereto. 4

a represents the nipple to be secured upon the end of a Uas-pipe, thesame being shown heavy in the ower portion and of thinner cylindricalform in the upper portion and provided with an elongated perforation 2in the upper end, which, as will be seen from Figs. 3 and 4, is not onlyelongated, but provided with opposite gas-passages.

l) is the air-distributer, c the hood, and d the Bunsen tube, whichparts are of usual or well-known construction connected togethersubstantially as shown in Fig. 1, so as to form the principal externalportions of the revoluble member.

A sleeve e with a closed-in upper end extends around the upper portionofthe nipple a, and is provided with an open center and with oppositevertically-disposed circular cams e. A cap f with a steppedexterior atits lower end surrounds thev upper end of the sleeve e and is connectedthereto by an inturned rib f at its lower end, and above the upper endof the sleeve c the cap at its narrowest diameter rises an appreciabledistance, and in its upper end there is a circular opening 3. Within thecap and between the same and the upper end of the nipple is located thevalve, of which q represents the valve-body, and 4 opposite shouldersmade therewith. 5 is the stem of the valve, 6 its conical head, and 7its square and recessed upper end, which parts by preference are stampedup out of metal and are integral. Vithin the cap and surrounding thevalve is a helical spring h, one end of which bears against the undersurface of the cap and the other end upon the shoulders 4 of the valve.The valve-body g extends down into the elongated perforation 2 in thetop of the nipple,

and as this perforation freely receives the valve-body it locates thevalve so. that the same cannot turn, but is free to receive a verticalmovement. Meanwhile the shoulders 4 extend across so that their endsrest upon the upper end of the sleeve c and come between the circularcams c. The conical head 6 when the valve is in the position Fig. 2provides for entirely or approximately closing oil the opening 3. Thesquare andrecessed upper end 7 normally remains in the TOO opening 3 andby the recessed construction thereof provides ample space for thedischarge of the maximum flow of gas through the said opening.

In the operation of the device and considering the parts to be in theposition Fig. l the connected air-distributer b, hood c, Bunsen tube d,sleeve e, and cap f are turned together. .This causes the cams e tounderrun the shoulders 4 of the valve and raise the same. To obtain thefull rising movement requires a quarter-turn of. the parts enumerated,at which time the" valve will be in the position Fig. 2 and according tothe length of the valve, or, in other words, the proportions thereof, sothe opening 3 will be entirely closed off, or so nearly so that only aminimum quantity of gas can escape-j ust enough to simply keep themantle of the burner glowing instead of being incandescent. Betweenthese two points the valve will be supported by said cams and willremain in Whatever position it is placed, because the valve-body cannotturn, and there is sufficient Jfriction between the sleeve e and thenipple to prevent the saine turning except by the exercise of someforce.

I have shown and prefer to provide a recess in the nipple a and a riband recess in the sleeve e, the rib thereof fitting the recess of thenipple and the recess thereof receiving the inturned rib f of the cap.Thereby the revoluble member in its entirety is connected to the nippleand longitudinal movement prevented, and at the same time a gas-tightjoint is formed both during the revoluble movement of the connectedparts f e b c d and when said parts are in a state of rest.

In the modification or form of my invention shown in Figs. 5 and 6, arepresents the nipple provided with a circular axial opening and onopposite sides of which opening are formed circular cams e2, similar tothe cams e, heretofore described, except that the cams in this instanceare formed on the nipple or stationary member instead of on therevoluble member. t' represents the revoluble member of offset portions,the same being the equivalent of the sleeve e and cap f, hereinbeforedescribed, and shown in the other figures. The upper portion of therevoluble member in the present instance is formed with parallelinternal ribs t" i2, forming guides, the same being placedlongitudinally of the revoluble member and on opposite sides and receiving between the same the ends of the shoulders 4 ofthe valve. Thevalve is the same as hereinbefore described, and illustrated in theother figures of the drawings, as is also the spring h, and thefunctions thereof in the modified form are identical. In the operationof the modification the valve turns with the revoluble member and israised and lowered by the cams e2, being guided and also held in a fixedrelation to the revoluble member by the ribs i i2. The other parts ofthe Bunsen burner (not shown in Fig. 5) are to be the same asshoWnin'Fig. 1. The parts a and t' are connected by a groove in aand rib8 in fi, preventing longitudinal movement, permitting revolublemovement, and forming a gas seal.

I claim as my invention- 1. In a gas-regulating Bunsen burner, thecombination with they nipple, 'of a revoluble member surrounding theupper end thereof and within the Bunsen burner and revoluble therewith,an internal valve-spring actuated in one direction and guided by thenipple, and means actuated by the movement of the revoluble member foractuating the valve in tlfie other direction for controlling the supplyo gas.

2. In a gas-regulating Bunsen burner, the combination with the nipple,of a revoluble member surrounding and extending above the upper endthereof so as to form an internal chamber, and which revoluble member iswithin the Bunsen burner and is revoluble therewith, an internal valvecontained within said chamber and guided by the nipple, and meansactuated by the movement of the revoluble member for actuating the valvefor controlling the supply of gas.

3. In a gas-regulating Bunsen burner, the combination with the nipple,of a revoluble member surrounding the upper end thereof and within theBunsen burner and revoluble therewith, an internal valve guided by thenipple and located between the same and the said revoluble member, andmeans actuated by the movement of the revoluble member for imparting alongitudinal axial movement to the valve for controlling the supply ofgas.

4. In a gas-regulating Bunsen burner, the combination with the nipplehaving an elongated perforation in its upper end, of a revoluble membersurrounding and extending be yond the upper end thereof and having acentral hole and forming an internal chamber, a valve located thereinand having a body extending down into the perforation of the revolublemember, and means for actuating the valve.

5. In a gas-regulating Bunsen burner, the combination with the nipplehaving an elongated perforation in its upper end, of a revoluble membersurrounding and extending beyond the upper end thereof and having acentral hole and forming an internal chamber, a valve located thereinand having a body extending down into the perforation of the nipple andup into the perforation of the revoluble member, and oppositevertically-disposed circular cams for actuating the valve with theturning of the revoluble member.

6. In a gas-regulating Bunsen burner, the combination with the nipplehaving an yelongated perforation in its upper end and a revoluble membersurrounding and extending beyond the up er end thereof and having acentral hole an forming an internal chamber, of a valve comprising abody portion g, shoulders 4, stem 5, conical head 6 and a square andrecessed upper end 7.

.7. In a gas-regulating Bunsen burner, the combination with the nipplehaving an elongated perforation in its upper end and a revoluble membersurrounding and extending beyond the upper end thereof and having acentral hole and forming aninternal chamber, of a valve comprising abody portion g, shoulders 4l, stem 5, conical head 6, and a square andrecessed upper end 7, and a helical spring in said chamber around theupper end of said valve with one end bearing on the under surface of therevoluble member and the lower end on the shoulders of said valve.

8. In a gas-regulating Bunsen burner, the combination with the mpplehaving an elongated perforation in its upper end and a revoluble membersurrounding and extending beyond the upper end thereof and having acentral hole and forming an internal chamber, of a valve comprising abody portion g, shoulders 4, stem 5, `conical head 6 and a square andrecessed upper end 7, and opposite vertically-disposed circular camsformed with the revoluble member and adapted to come beneath theshoulders of the valve.

9. In a gas-regulatinf Bunsen burner, the combination with the nipplehaving an elongated perforation in its upper end and a revoluble membersurrounding and extending beyond the upper end thereof and having acentral hole and forming an internal chamber, of a valve comprising abody portion g, shoulders 4,stem 5, conical head 6 and a square andrecessed upper end 7, opposite verticallydisposed circular cams formedwith the revo luble member and adapted to come beneath the shoulders ofthe valve, and a helical spring h surrounding the valve at one endbearing upon the shoulders thereof and at the upper end bearing upon theupper side of the revoluble member and acting to keep the valve down toits seat or against the surfaces of said cams.

10. In a gas-regulating Bunsen burner, the combination with the nipple,of a revoluble member surrounding the upper end thereof and extendingabove the same so as to form a valve-receiving chamber, aspring-returned valve inclosed and surrounded by the revoluble memberand located between the same and the upper end of the nipple andcoacting devices for actuating the valve for controlling the supply ofgas.

11. In a gas-regulating Bunsen burner, the combination with the nipple,of a revoluble member surrounding the upper end thereof and extendingabove the same forming a chamber between the upper ends of said parts,an internal valve within said chamber having a lower portion received inan aperlture of the nipple and having shoulders contacting with therevoluble member and means for guiding the said internal valve so thatthe same is raised and lowered by the turning movement of the revolublemember controlling the supply of gas.

12. In a gaseregulating Bunsen burner the combination with the nipple,of a revoluble member surrounding and extending beyond the upper endthereof and having a central hole and forming an internal chamber, of avalve comprising a body portion, shoulders, a stem, conical head andupper end, a helical spring in said chamberaround said valve, means formoving the valve axially of the burner and means for preventing thevalve turning with such movement.

Signed by me this 31st day of July, 1905.

CHAS. E. WIRTH.

